Lock



Oct. 8, 1929. K. MATUCH I 1,730,375

LOCK

Fil vv 1928 s Sheets-Sheet 1 Oct. 8, 1929. 'rucH 1,730,375

LOCK

Filed Aug. 2, 1928 5 Sheets-Sheet 2 Inventor; ffa/"a/ l/alurfi 1929. K. MATUCH 1,730,375

LOCK

Filed Aug- 2, 1928 5 Sheets-Sheet 5 Inventor.- /far0l l/acurfi l atented Oct. 8, 12

KAROL MATUGH, or WARSAW, POLAND M Loci:

My invention relates to locks, and it is an object of my invention to simplify the locks of the usual type as generally provided for ilpgors, safes, boxes, drawers, trunks, and they To this end I combine the bar and the bolt into a single element.

In the usual construction of locks the key acts only on the bar and the latch acts only on the bolt or the key acts on both parts together with the latch, but still the parts are separate. These locks are rather complicated, comprising a considerable number of parts and springs, so that the initial cost of .15 the locks is much increased and the lock is liable to failure and to frequent repair. This drawback is overcome according to my invention by combining the bar and the bolt into a single unit. All that is required for the operation of my lock is a single spring and a small number of parts.

In the drawings afiixed to this specification and forming part thereof a lock embodying my invention is illustrated diagrammatically by way of example.

In the drawings Fig. 1 is an elevation of my combined bar and bolt,

Fig. 2 is a plan view of the bar and bolt, viewed from below,

Fig. 3 is an elevation, and

Fig. 4 is an end elevation, viewed from the I right in Fig. 3, of a rocker forming part of my lock, 3

Fig. 5 is an elevation of a tumbler,

Fig. 6 is a part section through the base plate of the lock, showing a pin on which the tumbler is fitted to rock,

Figs. 7 to 10 illustrate the complete lock of its parts.

Referring now to the drawings, and first to Figs. 1 and 2, the bar 1 is constituted by a plate 1 and combined with a bolt 2. The bar 1 is slotted at 3, provided with a lug 4 for the tumbler or tumblers, a notch8 for the tumbler pin 26, Fig. 6, recesses 5, 6 and 7 at its lower edge for the reception Fig. 9, and an open slot 9 at its upper end for the reception of a pin 14 on a rocker 11, Fig.

Application filed August 2, 1928 Serial No.

with the cover removed in various positions of the key 20,

.closedthe bar 297,062, and in Poland. February'21, 1925.": p

2, 32 being a projection in the slot 9 for cooperation with the pin 14. 1 Referring now to Figs. 3 and 4, the rocker 11 which may be bent from sheet metal, comprises a comparatively wide upper part and end of the rocker 11 is equipped with a slotted eye12 for the reception of a pinf23, Fig. 7, on the base plate 21 of the lockcasing 10, 15 is aspring'which at one end is secured-to the rocker 11 and at the other end to a'nut 16 having a square opening 17 for the reception of an operating spindle, not shown. Preferably, the spring 15 is secured to the nut a flat angular lower part 13, with a curved ,race 13' for the key, and a pin 14. The upper with its end in a tangential position with re-' spect to the axis of rotation of the nut, the nut being cam-shaped at this point. Q 1

Referring now to Fig. 5, the tumbler 30 is of the'usual flat type. '18 is a slotin its casing 10, Fig. -7, and 26 being a'hole' in the tumbler. Any number of tumblers may be provided. 1 I Referring now to cured in the base plate 21 of the casing and adapted to support the tumbler, o'r tumblers, 30, 29 being a flange at the inner end of the Pin 26. I 1

upper-part, 19 is a lug at theupper edge of" the slot, 31 being a spring at one side of the tumbler which abuts against theside of the Fig. 6, 26' ajpin se- Referrlng now to Fig. 7 this'illustrates the normal position of the parts when as sembled in the casing 10' on the base plate 21, 22 being the key hole, 28 being a stationary lug for abutment by the nut 16 in whichthe spr1ngj15 is tangentially secured, 27 being ahole in the base plate 21 for the reception of the nut' 16, 24: being a stationary lugengaging in the slot ,3 of the bar plate 1, and 25 being an abutment or tumblers, 30. 3 1 The casing and the base plate 21 are providedwith the usual openingsand holes for securing a cover plate, not shown, on the easing 10 an'dfor holding the lock in a door" or-- the like.

In operation when the door or the like is lis pushed back into the=casing 10 by the inclined face of the bolt 2fen lug for the tumbler,

gaging a corresponding part on the door frame or the like. This causes the rocker 11 to be moved to the rear as shown in Fig. 8 by the front end of the recess 9 in the plate 1 engaging the pin 14 of the rocker,

- and putting tension on the spring 15. When the bolt 2 has been released, the parts are returned into the latching position shown in Fig. 7 by the spring 8. When it is desired to unlatch the door, the bolt-2 is retracted into the position illustrated in Fig. 8 by rotating the nut 16 through the medium of a spindle, not shown. The tension of the spring 15 moves the rocker downwardly while it is caused to swing to the rear by the camming of the nut 16. Thepin 14 on the rocker engages the lug 32 on the plate 1, moving it to the rear as far as permitted by the lug 24.

Assoon as the latch is released the parts will I "return into the position illustrated in Fig. 7.

To open the look by means of a key 20, the

key is rotated clockwise, raising the rocker 11 and the tumbler, or tumblers, 80, disengaging the pin 14 on the rocker from the notch at the base of. the recess?) in the bar 1, and permitting the bar to be retracted by the key engaging the rear end of the recess 5. The

bar is now free to move to the rear without interference by the pin 14-.

For closing the lock, the key 20 is rotated anti-clockwise, lifting the tumbler 30 to release the lug 4 on the bar and the rocker 11,

jcausing its pin 14 to release the lug 32 so that the bar is free to move to the outside of the casing, whereupon'the key, engaging the front edge of the recess 6, moves the bar until its end abuts on the wall of the casing 10. Upon further anti-clockwise rotation of the key, the tumbler 30 and the rocker 11 are released and are lowered by the pressure of their respective springs 15 and 31. The

tumbler 30 then holds the lug 4 on the plate when the nut 16 is rotated, a lug 33 may be the pin 14 is fixed against displacement, de-

l in its position by means of the lug' 19 in I its recess 18 and the pin 14 of the rocker 11 engages at the rear of the lu 32. In this case whenthe latch is operated torotate the nut 16, the rocker 11 is only rotated about its pin 23 under the pressure of the spring 15 without influencing the bar. If it is desired to hold the rocker 11 against rotation formed on the plate 1 at the rear of the lug a spring connectedto said nut in a direction tangential to the axis about which said nut is rotating, at one end and to said rocker at the other end. I p In testimony whereof I aflix my signature.

. KAROL MATUCH.

82, as shown in dotted lines in Fig. 1, so that pression of the latch being prevented by the cam portion of the nut 16.

In order to prevent opening of the lock with another key, a recess 34 may be made in the lower edge of the tumbler 30 as indicated in dotted lines in Fig. 5. 7 1

I wish it to be understood that I do not 'desire to be limited to the exact details of the art.

- construction shown and described for obvious I p modifications will occur to a person skilled in p 

